نتایج جستجو برای: hydrograph analysis

تعداد نتایج: 2824828  

Journal: :Civilla 2022

The purpose of this study was to analyze the flood discharge krung Tripa river re-period plan and behavior based on hydrographic data obtained from rainfall estimate magnitude peak discharge. Flooding is main problem caused by overflow Krung Tripa, with administrative passes through 2 (two) districts in Aceh Province, namely Nagan Raya regency area watershed (DAS) reached 3472.95 Km. Several fa...

Journal: :MATEC Web of Conferences 2020

1999
Francisco Olivera David Maidment

A method is proposed for routing spatially distributed excess precipitation over a watershed to produce runoff at its outlet. The land surface is represented by a (raster) digital elevation model from which the stream network is derived. A routing response function is defined for each digital elevation model cell so that water movement from cell to cell can be convolved to give a response funct...

2010
By H. P. GUY Thomas B. Nolan

_____________________________ Introduction. ___________________________ Scope of work and available information,... Theory of sediment yield and transport__. Fine sediment.______________________ Splash, sheet, and rill erosion____ Environmental factors__ _ _______ Coarse sediment.____________________ Effect of velocity.__---__________ Effect of particle size_____________ Storm characteristics._...

2010
Valentijn R. N. Pauwels Peter A. Troch

[1] The estimation of catchment-averaged aquifer hydraulic conductivity values is usually performed through a base flow recession analysis. Relationships between the first time derivatives of the base flow and the base flow values themselves, derived for small and large values of time, are used for this purpose. However, in the derivation of the short-time equations, an initially fully saturate...

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Considering the most of country have no gage station, in recent year one method can be proposed with the involvement of other information, which will affect hydrology condition. It can estimate flood water level. In this study, considering relationship between geomorphology and hydrology, using little information, flood hydrograph were simulated. This method is named geomorphological instantane...

Journal: :international journal of civil engineering 0
b. saghafian a.r. shokoohi

time–area method is one of the most widely applied techniques of watershed routing, and can be potentially used as a distributed model. in this paper, a fundamental flaw in the arrangement of subareas in the original time-area histogram is identified for one-dimensional flow. this is conducted on the basis of comparing time-area hydrograph with that of the kinematic wave theorem. accordingly, a...

Journal: :IOP conference series 2022

Abstract Floods occur due to several factors including topographic conditions, high rainfall intensity, blockage of water flow, lack infiltration areas, deforestation, and so on. The Tojo watershed is included in the Parigi-Poso river area, with an area 211,830 km2 a length 25.52 km. In watershed, it necessary study flooding, because always flows every year. This research aims find out how much...

Journal: :Astonjadro 2022

<p>Changes in land use are closely related to the increasing number of people who from time time. This change has an impact on runoff coefficient because rain that falls will not be retained or seep and flows directly into river. is what causes increase peak discharge a watershed. The purpose this study was determine magnitude changes occurred Serenan watershed 2015 2021 due use. method u...

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